Tire-setter.



H. LOURIE, J. W. DEVERO 6L J. G.' FORD.

TIRE SETTER.

' .7, 1904. 928,264. Patented July 20,1909. Y V 2 SHEETS-SHEET l.

Il. l/-

H. M. LOURIE, J. W. DEVERO n J. G. FORD.

TIRE BETTER. APPLIULTIOH FILED nl. 7, `1904.

Patented July 2o, 1909.

ANDREW. n. GRAHAM C0., PnoTo-LlrnunRAPHEns, wAsmNGo UNITED STATES PATENT OFFCE.

HERBERT M. LOURIE, JOHN W. DEVERO, A Nl) JOHN C, FORD, OF KEOKUK, IOWA, ASSIGNORS TO NATIONAL MACHINE COMPANY, OF KEOKUK, IOWA, A CORPORATION OF IOWA.

TIRE-SETTER.

Specification of Letters Patent.

Application filed January 7, 1904:.

Patented July 20, 1909.

Serial No. 188,076.

To all whom it' may concern:

Be it known that We, HERBERT M. Louron, Jenn W. Dnvnuo, and JonN C. iionn, citizens of the United States, residing at Keeu kuk, in the county of Lee and State of Iowa, have invented a certain new and useful Improvement in 'llii'e-iettera of which the fol-- lowing is a full, clear, concise, and exact description, reference being had to the acconb panying drawing, forming a part of this specification.

Our invention relates lto improvements in tire setting machines, and more pz'irticularly to that class ot machines known as hydrostatic tire Setters.r

It has for its object to provide a machine for setting tires cold by means of fluid prcssure, and to provideva machine Which shall be simple and positive in operation which exerts a great measure upon the tire, and wh ich can bc manuFactured at a reduced cost.

We have shown the preferred einliodimont of our invention in the accompanying draW- ings, in which:

Figure 1 is a plan vieuT of our tire setter; and Fig. 2 is a transverse section taken on the line 2 2 of 1.

In the construction which We have worked out as the most practical forni oi our invention, We provide a circular bed plate or spider, preferably made oi cast iron and formed with. radial arms 2 which are cast integral with a central ring 3 and an interino diate supporting ring 4. Suitable ribs 5 are formed upon the underside of the radial arms 2 to more iirnily brace the bed plate, and secured to these ribs by bolts or other moans are four legs (i, which support the machine. The radial arms 2 support at their outer ends a continuous ring 8 preferably formed of steel and securely fastened upon the arms by screws 9 passing through the same and screW ing into the bottom ot the ring.

Nithin the ring 8 is arranged in a circle, a series of similar pressing cylinders 10 fastened in position by screws passing through. the ring 8 and into lugs formed on the cylinders. Operating within these cylinders is arranged a series of coi'iverging pistons 'i1 operated by means of the pressure et seine fluid such as oil behind them to move them against the tire to be set upon the Wheet Hydraulic washers or packings arc secured to the inner end oi the pistons by sere-Ws to prevent leakage.

In order that the pistons may push toward the center uniformly or in a perfect circle for the purpose oi rounding or truing up the Wheels, they are connected by forming vertical slots in their front ends and inserting into the adjacent grooves metal lreys 12 as shown in Fig. 1. The pistons when connected in this manner Vform a continuous ring and no piston will move toward the center faster than the rest. Shoulders 13 are formed upon the outer ends of the pistons which prevent them from moving too far into the cylinders and closing the ports which admit the iinpelling 'Huid to the cylinders.

To the front end of cachpiston on its underside is attached by means of suitable screws, a bar 14 which extends to the inner ring 3 and slides in suitable slots therein to guide the piston. The guide bars 14 are also used in returning the pistons 1 1 back to place, a coiled spring 15 being placed underneath the guide bar to operate against a depending lug 16 formed thereon and. against the inner portion 3 of the bed plate.

A service pipe 17 for supplyingI each cylinder With fiuid is secured in a position beneath the cylinders and beneath the bed plate by straps 18 secured to the underside et the cylinders at suitable intervals on the service pipe. To register with the ports 19 formed at the rear end in the underside of the cylinders, ports 20 are formed in the service pipe and between the pipe and each cylinder a Washer 21 is placed in order to secure a perfect joint. This Washer has a concave bottoni to Ylit over the service pipe and. is made l'lat on top to :lit the bottom of the cylinder, the opening through thewasher being made larger than the ports in the cylinder and service pipe to allow for slight variations in adjustment. While We preferably use a Washer of this character, the service pipe may be secured tightly against the bottoni of the cylinder With suitable packing interposed therebetween. The service pipe is bent in a true circle to conform to the arrangement of the cyliiulers. The scrvice pipe is connected With a pump for lilling the saine, and is provided. with. a suitable outlet valve 24k to allovT the operating iluid to escape alter the tire has been set. The eutlet valve 24 is preferably connected by a pipe 2li with the tank containing the iinpelling iiuid in order that after the tire is set the tluid may be discharged into the tank and used again.

Extending across the central opening of the bed plate is an arch 27 bowed downwardly sutiiciently to accommodate the hub of a wheel and secured to the under side of the bed plate by screws 2S passing through lugs 29 and screwing into the bed plate. A central opening 30 is formed in the center of the arch through which projects the lower end of a standard or rod 31 which is adapted to be secured in position by an eccentric jaw 32 pivoted to the arch, and adapted to normally clamp the standard. A rod 38 is secured to the outer end ofthe jaw and extends upwardly and outwardly to a position to be conveniently grasped by the operator. A centering cone or hub support 34 is secured upon the standard at a point intermediate of its ends and the upper end of the standard is threaded to receive a nut 35 having a crank 36 by means of which it may be tightened or loosened or disengaged to permit the application of the wheel. In order to enable the dish of the wheel to be readily determined, a gage bar 37 is provided and is pivoted upon a suitable support 38 secured to the outer pe riphery of the ring 8 which support also serves at its lower end as a support for the rod 33. On the inner end ot the gage bar is formed an eye 3Q through which the vertical stem of an L-shaped gage L.LO passes, a screw 41 being` provided to hold the stem in position.

To adapt the machine to wheels of smaller size, segmental presser blocks 42 are provided which are adapted to be interposed between the pistons 11 and the tire of the wheel to occupy the space between them and to transler the force or n'essure of the plungers to the tire.

A pump cylinder 16 having a plate 47 which is bolted to the ring 8 is connected at its lower end by means of a pipe 18 with a tank or reservoir 49 adapted to contain oil, water, or any other desired fluid which is forced under pressure into the pipe 17 and thence through the ports 19 and 2O to actuate the pistons 1l. A check valve located in in the bottom portion of the pump cylinder' is adapted to permit the ilow of iiuid from the reservoir into the cylinder and close upon the downward stroke of the piston to prevent the fluid from 'flowing back from the cylinder to the reservoir. The cylinder' 46 is also connected with the service pipe 17, through a pipe 51 and a spring pressed valve is arranged in said pipe to allow the Vl'luid to flow into the service pipe, but closes as soon as the piston reaches the limit of its downward stroke and thereby prevents the 'liuid from ilowing back into vthe cylinder' from the service pipe.

A bracket 67 is secured upon the pump cyl* inder and has at its upper end journal boxes 68 and 69 adapted to receive the shai'ts 70 and 71 et the intermeshing gear wheels 72 and 73. The shaft 7l is supported at its outer end by a stand 75 having a -journal at its upper'end, and is driven by a pulley 76 mounted therecn. The gear wheel 7 3 is driven by the gear wheel 7 2 and is connected with and reciprecates the piston .54 by a pitman 77.

ln operation, the wheel is placed upon. the trame the standard SO passing through the hub and the hub resting upon the centering cone 34. The nut 35 is then tightened. to held the wheel in place, and the dish, gage set. The pump is started and the tluid is forced from the tank 49 into the service pipe 17 and thence into the cylinders through the ports 20 and 19, forcing the pistons inwardly. After the operatien of setting the tire is completed, the oil'is allowed to exhaust from cylinders and service pipe back into the tank or reservoir through the exhaust pipe '24a which is connected with the controlling valve 24;, which cuts oil" communication between the service pipe and tank, rlfhe springs 15 then operate to move the pistons back into their normal positions.

Having described our invention what we claim as new and desire to secure by Letters Patent is:

The combination with a frame or bed, oi cylinders mounted upon said trame, pistons movable in said cyinders having vertical slots in their outer ends, and keys fitting in said slots for connecting said pistons together.

ln witness whereof, we have hereunto subscribed our names in the presence ot two wit-- nesses.

HERBERT M, LOURIE. JOHN W. DEVERO. JOHN C. FORD.

Vvyitnesses OLIVER D. WALKER, MARGARET O. KnrrEL. 

